def __getattr__(self, name):
if self._wrapped is empty:
self._setup(name)
return getattr(self._wrapped, name)
python类empty()的实例源码
def configure(self, default_settings=global_settings, **options):
"""
Called to manually configure the settings. The 'default_settings'
parameter sets where to retrieve any unspecified values from (its
argument must support attribute access (__getattr__)).
"""
if self._wrapped is not empty:
raise RuntimeError('Settings already configured.')
holder = UserSettingsHolder(default_settings)
for name, value in options.items():
setattr(holder, name, value)
self._wrapped = holder
def __getattr__(self, name):
if self._wrapped is empty:
self._setup()
result = self._wrapped.get(name, None)
if result is None:
result = getattr(self._wrapped, name)
return result
def __getattr__(self, name):
if self._wrapped is empty:
self._setup()
val = getattr(self._manager, name, None)
if val is None:
val = getattr(self._wrapped, name)
return val
def __init__(self, *args, **kwargs):
super(DefaultStorageFinder, self).__init__(*args, **kwargs)
base_location = getattr(self.storage, 'base_location', empty)
if not base_location:
raise ImproperlyConfigured("The storage backend of the "
"staticfiles finder %r doesn't have "
"a valid location." % self.__class__)
def __init__(self, *args, **kwargs):
super(DefaultStorageFinder, self).__init__(*args, **kwargs)
base_location = getattr(self.storage, 'base_location', empty)
if not base_location:
raise ImproperlyConfigured("The storage backend of the "
"staticfiles finder %r doesn't have "
"a valid location." % self.__class__)
def __init__(self, *args, **kwargs):
super(DefaultStorageFinder, self).__init__(*args, **kwargs)
base_location = getattr(self.storage, 'base_location', empty)
if not base_location:
raise ImproperlyConfigured("The storage backend of the "
"staticfiles finder %r doesn't have "
"a valid location." % self.__class__)
def __init__(self, *args, **kwargs):
super(DefaultStorageFinder, self).__init__(*args, **kwargs)
base_location = getattr(self.storage, 'base_location', empty)
if not base_location:
raise ImproperlyConfigured("The storage backend of the "
"staticfiles finder %r doesn't have "
"a valid location." % self.__class__)
def __init__(self, *args, **kwargs):
super(DefaultStorageFinder, self).__init__(*args, **kwargs)
base_location = getattr(self.storage, 'base_location', empty)
if not base_location:
raise ImproperlyConfigured("The storage backend of the "
"staticfiles finder %r doesn't have "
"a valid location." % self.__class__)
def extract_lazy_object(lo):
"""
Unwrap a LazyObject and return the inner object. Whatever that may be.
ProTip: This is relying on `django.utils.functional.empty`, which may
or may not be removed in the future. It's 100% undocumented.
"""
if not hasattr(lo, '_wrapped'):
return lo
if lo._wrapped is empty:
lo._setup()
return lo._wrapped
def __init__(self, *args, **kwargs):
super(DefaultStorageFinder, self).__init__(*args, **kwargs)
base_location = getattr(self.storage, 'base_location', empty)
if not base_location:
raise ImproperlyConfigured("The storage backend of the "
"staticfiles finder %r doesn't have "
"a valid location." % self.__class__)
def __repr__(self):
# Hardcode the class name as otherwise it yields 'Settings'.
if self._wrapped is empty:
return '<LazySettings [Unevaluated]>'
return '<LazySettings "%(settings_module)s">' % {
'settings_module': self._wrapped.SETTINGS_MODULE,
}
def __getattr__(self, name):
if self._wrapped is empty:
self._setup(name)
return getattr(self._wrapped, name)
def configure(self, default_settings=global_settings, **options):
"""
Called to manually configure the settings. The 'default_settings'
parameter sets where to retrieve any unspecified values from (its
argument must support attribute access (__getattr__)).
"""
if self._wrapped is not empty:
raise RuntimeError('Settings already configured.')
holder = UserSettingsHolder(default_settings)
for name, value in options.items():
setattr(holder, name, value)
self._wrapped = holder
def __init__(self, *args, **kwargs):
super(DefaultStorageFinder, self).__init__(*args, **kwargs)
base_location = getattr(self.storage, 'base_location', empty)
if not base_location:
raise ImproperlyConfigured("The storage backend of the "
"staticfiles finder %r doesn't have "
"a valid location." % self.__class__)
def __init__(self, *args, **kwargs):
super(DefaultStorageFinder, self).__init__(*args, **kwargs)
base_location = getattr(self.storage, 'base_location', empty)
if not base_location:
raise ImproperlyConfigured("The storage backend of the "
"staticfiles finder %r doesn't have "
"a valid location." % self.__class__)
def __init__(self, *args, **kwargs):
super(DefaultStorageFinder, self).__init__(*args, **kwargs)
base_location = getattr(self.storage, 'base_location', empty)
if not base_location:
raise ImproperlyConfigured("The storage backend of the "
"staticfiles finder %r doesn't have "
"a valid location." % self.__class__)
def __init__(self, *args, **kwargs):
super(DefaultStorageFinder, self).__init__(*args, **kwargs)
base_location = getattr(self.storage, 'base_location', empty)
if not base_location:
raise ImproperlyConfigured("The storage backend of the "
"staticfiles finder %r doesn't have "
"a valid location." % self.__class__)
def __getattr__(self, name):
if self._wrapped is empty:
self._setup(name)
return getattr(self._wrapped, name)
def configure(self, default_settings=global_settings, **options):
"""
Called to manually configure the settings. The 'default_settings'
parameter sets where to retrieve any unspecified values from (its
argument must support attribute access (__getattr__)).
"""
if self._wrapped is not empty:
raise RuntimeError('Settings already configured.')
holder = UserSettingsHolder(default_settings)
for name, value in options.items():
setattr(holder, name, value)
self._wrapped = holder
